Threads that resist vibrations and remain tight without auxiliary locking devices are called ____ threads.
A. buttress
B. Acme
C. dardelet
D. rolled
E. none of the above
Answer: C
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If a large cutting tip pops when the acetylene is turned off, ____.
A. turn the oxygen off first B. turn the acetylene back on C. it is defective and must be discarded D. it must be repaired
Technician A says that when replacing a tungsten lightbulb element, you should avoid touching the bulb with your bare hands. Technician B says that halogen headlights produce about twice as much brightness measure in candle power as incandescent headlights. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
What is the purpose of evacuating a refrigeration system?
What will be an ideal response?
Discard eligible means that the information is not critical and can be thrown out if the circuit experiences ________
Fill in the blank(s) with correct word